MARINE CORPS TM 6115-12/7
Organizational Troubleshooting - Continued
TEST OR INSPECTION
Step 13. Disconnect P5 from EECM and check continuity between P5-D and
P12-A, and between P5-E and P12-B.
Replace wires if damaged or no continuity.
If there is continuity, replace EECM (paragraph 4-64).
10. UNIT ATTAINS IGNITION AND RUNS BUT READY TO LOAD LIGHT DOES NOT COME ON.
NO MALFUNCTION LIGHTS.
To prevent injury, ensure that
Check VOLTAGE meter on control panel for voltage indication of
If VOLTAGE meter reads zero or very low voltage, go to
If voltage is correct,
shut down generator set.
test READY TO LOAD light.
If light does not come on,
replace lamp (paragraph 4-74).
If lamp is good, open
control panel and check for 24 Vdc between pins of READY TO
LOAD light (DS1).
If voltage is correct, replace socket
If no voltage, disconnect battery cable
Inspect and check continuity on wires
U122A18 and V102S18N.
Replace if damaged or no continuity.
With unit running, monitor BATTERY CHARGING meter.
If BATTERY CHARGING meter reads less than -5 amps, shut
down generator set and go to Step 3.
If BATTERY CHARGING meter reads more than -5 amps and more
than 20 seconds have passed since attempted start, shut
down generator set.
It may be necessary to disconnect
battery to stop unit.
Inspect starter and solenoid for
damage and to see if starter is engaged. Replace starter
if necessary (paragraph 4-32b).